Like PUBG, Battle Royale is a 100-player survival game set on a single map that closes in as the game progresses. Players are dropped onto the map via a "battle bus" and are armed with only a glider and pickaxe, with the objective being to outlast all the other players and be the last one standing. It's this similarity--and Epic's admission that PUBG inspired it--that caused PUBG developer Bluehole to speak out against the game last week.

"We've had an ongoing relationship with Epic Games throughout PUBG's development as they are the creators of UE4, the engine we licensed for the game," Bluehole VP and executive producer Chang Han Kim said. "After listening to the growing feedback from our community and reviewing the gameplay for ourselves, we are concerned that Fortnite may be replicating the experience for which PUBG is known." Han Kim also said that Bluehole was considering taking some kind of "action" against Epic.